Driving-gear



A. B. RONEY.

DRIVING GEAR.

(No Model.)

Patented` Febgl, '1894.

Hl i

NITED STATES PATENT OFFICE.

ALEXANDER B. RONEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO HUGH R. WALKER, OF CHICAGO, ILLINOIS.

DRIVING-GEAR'.

SPECIFICATION forming part of Letters Patent No. 514,891, dated February 13, 1894.

To all whom 'it may concern:

Be it known that I, ALEXANDER B. RoNEY, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain newand useful Improvements in Driving-Gearing, of which the following is a full, clear, and exact description, reference being had to the accompanyin g drawings, forming a part of this specification.

My invention relates to driving-gearin g for railway vehicle trucks and the invention is also obviously applicable to a great Variety of other similar` and different purposes, wherever a shaft or an axle is to be driven from a motor in such manner as to enable the motive power to be .readily applied to and disconnected from the driven shaft, axle, or other part.

The primary objects of my invention are to produce a driving-gearing which shall be simple, strong and durable in its construction, positive and direct in its action, and easily manipulated, and which shall be capable of iirst applying the motive power more slowly but with greater force, and then more rapidly but with less force.

To the above purposes, my invention conthe section line. Fig. 3 is an enlarged side elevation of the spiral-gear and the crowngear detached.

In the said drawings, A designates one of the axles of a railway vehicle truck, and H designates a crown-gear wheel mounted thereon; the teeth of this crown-gear being arranged in a circular series projecting outward from one side of the wheel near or at its mar= Application filed December 24, 1892. Serial No. 456,207. (No model.)

gin. A friction-wheel J is also mounted upon the axle A at a point opposite from the crowngear H, and both of said gear-wheels H and .I are mounted to rotate with the axle.

' D designates'a bearing-frame, shown as of open rectangular form and as supported by suitable oppositely disposed trunnions as E, in hangers depending from the truck-frame;

vthe bearing-frame being thus adapted to be tilted or oscillated vertically upon its trunnions, by any suitable means, for purposes to be presently explained, and the trunnions extending transversely with relation'to thev axle A.

In the bearing-frame D is journaled a shaft B which extends transversely with relation to the trunnions E and consequently parallel, generally with the axle A. At a suitable point intermediate of its ends, the shaft B carries a device for receiving power from a prime motor and for transmitting such power to the shaft B so as to rotate said shaft, either in but one direction or in both directions. I have shown a belt-pulley C as employed for this purpose, but any other device-which fulfills the requirements stated, may be used. The belt-pulley C is shown as mounted Within the bearing-frame D and upon the shaft B midway of the length of the latter, and so as to turn axially with said shaft. The ends of the shaft protrude beyond ends of the bearing-frame and one end of said shaft carries a friction-wheel I which at times engages the friction-wheelJ upon the axle A. The opposite end of the shaft D carries a disk or wheel G upon the outer side or face of which is formed, or suitably secured, a spiral rib or iange g, the several convolutions of which each pass between two of theteeth of the crown-gear H when the gear G is moved into engagement with said crown-gear.

When the bearing-frame D is rocked or tilted in one direction, upon its trunnions E, the spiral-gear G is moved into engagement with the crown-gear H, while the frictionwheel I is moved out of engagement with the friction-wheel J. On the other handwhen the bearing-frame D is rocked or tilted in the opposite direction upon its trunnions E, the spiral-gear G is moved out of engagement IOO with the crown-gear H and the frietiongear I is moved into engagement with the friction- Wheel J. Again, if the bearing-frame D be set horizontally, or in its intermediate position, neither of the gear-wheels Gand I-I will engage either of the wheels II or I, and @ensequently no power will be applied to the axle.

As above stated, any appliances may be used for rocking or tilting the bearing-frame D in the manner described, but in the drawingsI have shown a hand lever F as adapted to this purpose. This hand lever is shown as connected at its lower end to the bearingframe D midway ol' the length of the latter and carries a stop-pawl for engaging a seetor-rack, the rack being mounted either upon the truck-frame, as shown, or at any other suitable point.y The hand-lever is adapted to be moved either to the left or to the right, or to be set intermediately of such two extreme positions, `as described. Obviously, the gearing described may be applied to any rotating shaft or part otherthan the axle of a railway Vehicle truck; such gearing being adapted to a great variety of uses.

When the spiral-gear is brought into engageulent with the crown-gear it rotates the latter at first more slowly but with great power, and the friction-Wheels I and J' may be subsequently brought into engagement with each other (the gears G and II being then disengaged) and more speed but less power will then be imparted to the axle A. A belt may lead from a suitable motor to the belt-pulley G, or such motor may be otherwise geared to the shaft B, as above suggested.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. A driving-gearing, comprising a gear wheel and a friction-wheel mounted upon a revoluble shaft and a second revoluble shaft carrying a spiral-gear for engaging the first named gear-Wheel and also a friction-Wheel for engaging the first-named friction-wheel; one of said shafts being mounted so as to rook or tilt and thus alternately engage and disengage the friction-Wheels and the spiral and gear-wheels, substantially as set forth.

2. A drivinggearing, comprising a drivenshaft carrying a crown-gear wheel and africtonwheel, a tilting frame having a driving shaft journaled therein which carries a spiralgear and a friction-gear, and a shitting-lever connected to the tilting-frame and serving to tilt said frame so as to alternately engage and disengage the friction-gears and the spiral and crown-gears, substantially as set forth.

ALEXANDER B. RONEY.

Witnesses:

TODD MASON, O. R. BARNETT. 

